cobbin



(No Model.)

J. S. OORBIN.

DISK HARROW.

No. 325,224. Patented Aug. 25, 1885.

5% MI!!! (HI! INVBNTOR 7 WRNEYS N. PETERS, Photo-Lithographer.Wuhingfon. n. c;

UNITED STATES PATENT OFFICE.

JAY S. CORBIN, OF GOUVERNEUR, NEW YORK.

DlSK-HARROW.

SPECIFICATION forming part of Letters Patent No. 325,224, dated August25, 1885.

Application filed July 24, 1884. (No model.

To all whom it may concern.-

Be it known that I, JAY S. CORBIN, a citi zen of the United States,residing at GOUV- erneur. in the county of St. Lawrence and State of NewYork, have invented certain new and useful Improvements in Disk-Harrows,of whi ah the following is aspecification, reference being had thereinto the accompanying drawings.

The object of one part of thisinvontion is to provideiorthe adj ustmentof the disk-gar: gs relative to each other and upon aline transverse tothe line of draft in that class of harrows in which the disk-gan gs aremounted in the lower ends of pendent hangers in such manner that thegangs can vibrate in both horizontal and vertical planes, the gan gs inthis class of har row being connected with the lower ends of the hangersby means of universal joints, or equivalents therefor, the hangers beingnonrotating and bolted rigidly to the frame.

Other parts of the invention relate to details of construction, whichwill be hereinafter fully explained.

Figure 1 is a rear elevation of my improved harrow. Fig. 2 is a top orplan view. Fig. 3 is an end elevation, two disks and a gang axle havingbeen broken away on the line 2 c, Fig. 1. Fig. 4 is a vertical section,enlarged, of part of the harrow, taken on line .2 2', Fig. 1. Fig. 5 isarear elevation of Fig. 4. Fig. 6 is a vertical section on the line 3 y,Fig. 4, looking in the direction of the arrow 1, Fig. 4. Fig. 7 is a topor plan view of the hanger and one of the shaftbearings. Fig. Sis abottom view of one of the shaft-bearings, enlarged, with itssupporting-bolt indicated in dotted lines. Fig. 9 is a horizontalsection of the same bearing, enlarged, taken on line a? 06', Fig. 5.Fig. 10 is a central vertical section, reduced in size, of a gangaxleand part of one of the hangers.

In the drawings, A is the tongue, and Athe seat.

B is a cross-bar or transverse bar bolted firmly to the rear end of thetongue and transverse thereto.

0 U G constitute a non-rotating pendent hanger, and as the devices ateach end of the transverse bar B are substantially alike, I will confinemy description to those at the righthand end of the said bar.

Referring particularly to Figs. 8, 4, 5, 6, and 7, G is the verticalpart of the non-rotating hanger expanded at its upper end into ahorizontal arm or plate, C, which is slotted lengthwise, as indicated inFig. 7, and is secured firmly and adjustably t0 the under side oftransverse bar B by means of a bolt, 1), which passes through the slot,through a hole in the transverse bar, and preferably through a sad dle,I), placed on top of the bar, the outer ends of this saddle turningdownwardly over the edges of the bar, and thereby strengthen ing itagainst being split by the bolt 1). The lower end of the hanger isforked, one leg, C of this fork projecting forward on a substantiallyhorizontal line, and then downward on a substantially vertical line, itslower end having a hole to receive a bolt, to be hereinafter referredto. The rear leg, 0", extends in a substantially vertical line to aboutthe same distance below the transverse bar as does the leg 0 and is alsoprovided with a hole to receive the bolt, which has been referred to.The upper horizontal part of theleg O is expanded transversely, as at c,and is constructed with an elongated opening or slot, 0. (See Figs. 5,6, 7.) The vertical part of this leg 0 has formed upon it an ear, (I.

I am aware that Patent No. 116,221 shows a disk-gang connected at bothends by hangers to a supplemental frame, which, in turn, is connected tothe transverse bar of the main frame by a vertical pivot, forked at itslower end to receive the supplemental frame and rotating in the sameframe.

I am also aware that Patent No. 259,919 shows a hanger forked at itslower end, with a disk-gang pivoted therein so as to vibrate in verticalplanes relative to the hanger, the hanger being pivoted to the mainframe by an arm, so that the hanger swings bodily in an arc of a circleabout said pivot whenever the disk-gang swings or vibrates in ahorizontal plane.

I do not in this case claim either of the above-mentioned patentedconstructions, but believe I am the first to employ the combi= nation,with the tongue and cross-bar of a main frame, of non-rotating pendenthangers forked at their lower ends and slotted at their upper ends,bolts passing through the slots and into the cross-bar, disk-gangsmounted loosely in the forked ends of the non rotating hangers, wherebysaid disk'gan gs can vibrate in both horizontal and vertical planeswithout any corresponding movement of the hangers, and whereby, also,the disk-gangs and their non-rotating hangers can be adjusted toward andfrom each other on a line at substantially a right angle to the line ofdraft.

D D are rods or links firmly bolted to the tongue at their forward endsand formed at their rear ends into hooks or eyes d (1, which engage withthe ears (Z d, and thus serve to support the transverse bar 13againsttwistin g strain in substantially the same manner as is customaryin many machines of this genv eral character.

E E designate, respectively, the upper and lowerportions of a boxingwhich is constructed with a central recessed or hollow enlargement orrib, E

0 e are perforated lugs cast upon both the upper and lower halves ofthis boxing for the reception of hols, which secure the two parts'firinly to each other. (See Figs. 4, 5, and 7.)

e is a lug or stud projecting upwardly from the rib E of the upper partof this boxing, and projects up into the slot 0 of the hanger.

e a (see Figs. 3, 4, 5, 6, 8) are spurs or lugs projecting downwardlyfrom the lowest part of the rib E of the lower part of the boxing, oneof these lugs being placed upon either side of the bolt F, which issupported at its ends in the legs C O of the hanger, the constructionand relation of parts being such that the boxing is supported looselybetween these hanger-legs and the bolt F, as will be readily seen froman examination of the drawings.

(See particularly Fig. 8, where the position of the bolt F between thelugs e e is indicated by dotted lines.) The lug e is, by preference,made hollow to serve also as an oil-cup, there I "bein g a small hole orduct extending from the bottom of the oil-cup through the upper memberof the boxing. (See Fig.6.)

G is a thimble, consisting, essentially, of a tube having flanges at itsends, with a ring or hoop, g, made, preferably, of wrought-iron, andshrunk onto the flange, or malleable iron driven tightly on. Each hoopis by preference a little wider than the flange on which it is mounted,and projects inwardly so as to overlap the adjacent end of the boxing,which is round in crosssection, and fits closely within the hoop in suchmanner as to assist materially in preventing dirt from entering betweenthe sleeve and the boxing, thereby reducin g friction and preventing thecutting away of the wearing-surfaces of these parts.

H is a gang-axle.

I I are disks mounted upon the axle, and properly spaced by means ofthimbles of any usual or approved construction, and in practice Ipropose to apply nuts or other clamping devices to the ends of the axlesin such manner as to firmly bind the disks, the thimbles, and the axlesto each other, so that they shall all rotate together, and that thethimble G shall rotate with the axle inside of the boxin g E E.

J J are draw-bars or links connected at their forward ends to a lever,K, which is pivoted to the tongue, there being some locking devices usedin combination with the lever and tongue, so that the lever may be setin any desired position. The rear end of each of these draw bars J isconnected to one of the gangs of disks, preferably, by means of a boxingor strip which surrounds one of the thinlbles, and has a perforated earto receive a corresponding hook or eye of the draw bar; but as any ofthe convenient or approved form of lever or devices for connecting therear ends of these draw-bars with the gangs may be used, it is notnecessary to describe them in detail. Lever and draw-bars J J areemployed for moving the gangs into different positions or at differentangles relative to the line of draft, and from an examination of thedrawings it will readily be seen in Figs. 4, 5, 6, 7 that the boxing E Ecan vibrate in a horizontal plane by reason of its being loosely mountedbetween the forked legs of thehanger, it being, of course, understoodthat when the harrow is in operation the weight of the rear end of theframe and of the driver is supported upon the upper surface of the rib Ewhich. engages with the lower surface of the slotted portion 0 of thehanger, the space between the lugs e and the bolt F'permittin g thedesired vibration of the gangs into a horizontal plane without unduecramping of parts. It will also be seen by examining the drawings thatthe disk-gangs can vibrate in vertical planes by reason of the samelooseness of parts, when such vibration is desirable, in order that thegangs may conform to any irregularity in the surface of the ground overwhich they are drawn. 7

In Figs. 3, 4, and 6 I have shown the boxing E E as resting upon thebolt F and out of 1 to contact with the forwardly-projecting horizontalpart of the hanger-leg This I did in order to show (particularly inFigs. 3 and 4) the lug e 5 but it will, of course, be understood thatwhen the machine is in operation the relative position of these parts isreversedthat is to say, that the upper part of the boxin g is in contactwith the under surface of the horizontal part of the bracket-leg and outof contact with the bolt F, except that the vertical vibrations of thegangs might sometimes produce a contact between the bolt F and theadjacent part of the boxing.

By reason of the rods D D having hooks at their rear end which take intothe ears cl d, the hangers and gangs can be adjusted horizontally uponthe cross-bar B without crampin g or straining any of the parts wheneversuch adjustment is desirable in order to increase or diminish thedistance between the inner disks of the gangs.

What I claim is-- 1. In a disk-harrow, the combination of a tongue, thetransverse bar rigidly attached to the ton gue,two disk-gangs andthebearings in which they rotate, non-rotating hangers, each slotted atits upper end and forked at its lower end, which is arranged between twoadjacent disks of a gang, the bolts F F in the lower ends of the forkedhangers, and the bolts 1) b, passing through the slotted upper ends ofthe hangers, the shaft-bearing being mounted 1 loosely in the lower endsof the forked hangers, 1 whereby the gangs are adapted to vibrate inboth horizontal and vertical planes, and to be adjusted toward and fromeach other on aline at a right angle to the line of draft, substantiallyas set forth.

2. In a disk-barrow, the combination, with the tongue and the transversebar, of the forked hangers, each open at its lower end, the boltsmounted in thelower ends of the forked hangers, the axles and thebearings provided with the lugs arranged upon opposite sides of thebolt, and mounted loosely in the hangers, and adapted to engage with oneleg of each hanger when the harrow is drawn forward, substantially asset forth.

3. In a disk-barrow, the herein-described forked han ger having the leg0 provided with the transversely-slotted part c, the bolt at the lowerend of the fork, and the bearing loosely supported between the bolt andthe fork of the hanger, and provided with a lug projecting into thetransverse slot, and with the lugs e- 6 substantially as set forth.

4. In a disk-barrow, the herein-described forked hanger having the leg(DB-provided with the transversely-slotted part c, the bolt at the loweren d of the fork, and the bearingprovided with the enlargement E thelugs 0 0 and the hollow lug 0, arranged in the slot a, substantially asset forth.

In testimony whereof I affix my signature in presence of two witnesses.

Witnesses: JAY S. CORBIN.

J. R. AUSTIN, S. F. HARTLEY.

